My latest project is a mini tumbler table topper. I got the 2-1/2" template from Missouri Quilt Co. Couldn't find a tumbler template of any size at my local Joann.
A tip if you make your own cardboard tumbler (which you may already know). Use the cardboard as a guide, but lay your ruler over the top of it to make the cut.
Don't know what it is, but I absolutely adore the tumbler pattern.